机构地区: 清华大学信息科学技术学院计算机科学与技术系
出 处: 《计算机科学》 2004年第12期26-30,共5页
摘 要: 多媒体协作应用在Internet上具有广阔的应用前景,由于Internet的异构性和IP Multicflst目前仍无法在广域范围内得以实现,所以本文提出了一种基于代理的应用层自适应组播框架(Agent-based Application Level Adaptive Multicast,简称Ag-ALAM),利用现有的Internet中的单播和局域范围内的IP Multticast,并引入移动Agent技术来实现Internet上的多点数据通信。Ag-ALAM采用了分层结构和应用层缓存方法,在数据传输过程中可以根据数据转换规则和用户意愿进行自适应的数据传输。 The promising future of multimedia collaborative application has been foreseen,but with the Internet heterogeneity and the nonsupport of IP Multicast in WAN, we present an agent-based application level adaptive multicast architecture (Ag-ALAM) in this paper,which realizes multipoint data communication in the Internet by the Internet unicast, local area IP Multicast and mobile agent technology. Ag-ALAM with layered architecture and application level cache can adaptively data transport according to data transcoding rules and users' desire.